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- //
- // timer.cpp
- // ~~~~~~~~~
- //
- // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
- //
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- //
- #include <iostream>
- #include <boost/asio.hpp>
- #include <boost/bind.hpp>
- void print(const boost::system::error_code& /*e*/,
- boost::asio::steady_timer* t, int* count)
- {
- if (*count < 5)
- {
- std::cout << *count << std::endl;
- ++(*count);
- t->expires_at(t->expiry() + boost::asio::chrono::seconds(1));
- t->async_wait(boost::bind(print,
- boost::asio::placeholders::error, t, count));
- }
- }
- int main()
- {
- boost::asio::io_context io;
- int count = 0;
- boost::asio::steady_timer t(io, boost::asio::chrono::seconds(1));
- t.async_wait(boost::bind(print,
- boost::asio::placeholders::error, &t, &count));
- io.run();
- std::cout << "Final count is " << count << std::endl;
- return 0;
- }
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